Nest's Energy-Saving Thermostat Jacks Up Bills, Suit Says

Law360, Los Angeles (March 25, 2014, 10:34 PM EDT) -- Google Inc. unit Nest Labs Inc.’s premiere product — a sleek, light-up thermostat that can be controlled with smartphones and other gadgets — looks pretty but fails to actually control temperature, according to a putative class action filed Tuesday in California federal court.

Plaintiff Justin Darisse alleges that the thermostat, which cost $250, doesn’t accurately read the temperature in a room because the screen on its face heats up, throwing off its measurements and signaling it to turn the air conditioning higher, according to the suit.

The thermostat is sold as a way to save money on energy bills, but because...

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